Safari 1.2 came out last yesterday, and I have to admit I am more than a little impressed! There are no new stunning features, no not a one I could find anyways... This release includes major bug fixes, mainly to the caching system and to the KJS engine.
I'm deleting Mozilla from my system, now that all of these issues have been rectified and all my pages render and work properly now (even Orkut) there is no reason to waste my iBook's small hard drive on two browsers.
Here is a full list of the improvements that can be found in this release, quite impressive.